Locking means for demountable rims



L. L. DARROW AND F. W. HOIESSIEI..v LOCKINGIMEANS Foa DEMouNTABLE mms.

APPLICATION FILED AUGJG, 1920.

1 ,407,787.4 Patented Feb; 28,'1922- um ZSZL'e`L.aJT0w and IIT-@delicia T/l/.HOSSGl .f4 J0 x B12- 5, ES; ATTORNEY UNITED STATESl PATENT OFFICE.

misma 1L. miin'ow Aim meneame w. messen or srocxroir, @meinem LOCKING MEANS non nEriidNTAaLE 'spereifieaiioiiif Leitersreteiii. a'teiited Feb, 28, 1922.

'Application filed 4August 16,1920. Serial NoQSQ'ZB,

the; same, reference being lhad to the accompanying-drawings, -and to the characters rof reference marked thereon, which form 'is part `ott this application.

This invention relates Tto iinpi-'oveme'nts'in means for locking demouiitable rilmsonto the l'-ixed irimot -a Wheel, the iprincipal, obj ect beings-:to provide a means whereby fthe two f rims may be firmlyv held fto one another withou'tfthe -use lof a number of removable clamps or -other members, and which will firmly7 4hold the tire holding .rim Vagainst movement on the Wheel, both peripherally and laterally A e In our improved structure, the component parts ot'the device are permanently mounted on ithe respective members, :so that no pieces van ever jar loose and become lost, andv i which needs no tools ot ,any krnd 'in Apositioning theorie rim on the other, other I`than a jack to liittthe wheel.

lWe have also provided a device which is extremely simple to operate, consuming but a few seconds ytimeto either lp'llace'or remove the demountable rim. .Y

A, further object of the Ainvention is vto produce la simple and inexpensive device,

and yet one which will be exceedingly effective Itorwthe zpurposes for which fit" is designed.v y

`frlhese objects We accomplish by means of such lstructure and relative arrangement vot parts as will fully appear vby a perusalof the Afolloivingspecification and-claims.

Inr'the dravvingssimilar charactersof referenceI indicate l'corresponding parts in `the several views. e

Fig. l :is fa perspective elevation of a Wheel, showingthe female locking ilugs von the fixed rim. f

Fig. -2-is a similar view of a `demoiintable rim, yshowing the male locking lugs on the same. f

F3 is :ierossvsectionthroughthe*wheel and demountable rim assembled, showing anv` eccentric lock for holding the rlugs in engagemenhivhen `co-op'eratively placed together.

Fig. 4 K4is 'a fragmentary plan 4ot the telly,

showing it-he position of fthe lockhandle when j' thelocklisaengag'ed. y g

Referring fnotvmore :particularly lto the charaeterslfot reference on fthe drawings, the

numeral l denotes the felly of the `ivl'ieel,

having 'the usual fixed 'rim V2 placed on lv"the same, and provided Withthe usual flange on its inner edge to engage one 'edge of they delnountable rim 4.

Fixed-onto the rim 2 inlany desired Iman.-

ner fare a iplurality of L-shapedlugs 5, one" n leg'aio-f Vwhich"extends'ito and merges vwith the `dim?flangey at right angles thereto,

While the other leg f5 eXteiids vparallel toJ sai-d Viafnge and *has *its edge nearest the flange-tapered toward thefouter end. i Thus pockets orrecessesr are tormedgenclo'sed ony three v'sides by the lugs and-rimtlange. y.'

The r-outer yft'aces of Ithese lugs are concern tric iviththe w.heel,1and fit inside fthe '-ri'nr4, the inner periphery ot which v-is provided with ylugs 7 Which-'are exactlyfthefsame shapel as y'the pockets'j. It will therefore be seen that if the riin- 4 fis slid over the `rim 2":3'0 that the corresponding lugs clear each other but are initra-nsverse alinement, and i:the rim',y

4 is then given a icertain amount of radial movement on the rim 2,'the lugs 'T Willmove into the recesses 16, andthe vitvvo irim's'cannot have Aany relative `lafteral(movement.

The '-end openings of the recesses -6 are iii the direction of" forward rotation 'ot 'the Wheehso that the ends f5 oftheluigs bear against lthe 'lugs f7 and drive the latter.'

are Wedge shaped lugs 8, :positioned itangen tial itosaiid ri1n,and adapted to co-aet 'with similar lugs 8a`on the rim V4. 'These'wedge lugs lare of course so positioned relative -to and Wedge together when the-Wheel is-so" turned. K A y These two distinct types 'ofy Wedge."lugs` thus'ipositively vhold 'the demoulntable 4rimonto the Wheel against both klateral fand peripheral movement `relativethereto'.

. In order to lock the co-acting lu'gs fin positioinand to allow a backing up movement of the Wheel Without disengagement of l:the lugs, I provide `on therim 4 a 'lug-.19, and a radial pin l0 in fthe 'telly vl projecting through the irimQ behind the'lug9 when the rims are in fposition, this ypin having lan eccentric head 1:1 adaptedito engage ith'e flu'g so as to force the lugs on the rim 4 into v recesses when the parts are separated, andv an exceedingly: nea-t ap-.

the rim l2.

The pin 10 is slidably and turnably mounted in the felly ina sleeve lthe'rein, and the felly band has a transversely positioned pocket 13 of a shape to "receive'the engagement with the corresponding lugs on therein, after the pin is turned to disengage the head fromthe lug, by means of a suitably arranged spring 141 on the pin 10. The latter projects through theinnerface of the' felly and has 'fixed onthatA end a spring handle 15 by means of which the .pin may be turned. l

Vhen the eccentric head is disengaged from the lug 9.and is then seated in the pocket 13, the handle then projects transversely of the felly. l/Vhen the lock isengaged however, the handle moves to `be substantially parallel to the felly and to-lie on the same, being adapted to be passed over a pin16 in the felly to prevent aretractive movement of the handle,.while the latter is then under tension, -being a springmember, as stated. The eccentric head 11 is so shaped and positioned on. the pin, relative tothe handle that when thelatterzis engaged by the pin 16, the said head will not have turned to its extreme locked position. By means of thisiconstruction, therefore, there is always a tendency forthe lock to tighten up, rather than to work loose',and this tendency is furf thered` by the vibration of the wheel as it rotates which soon wedges the lugs into posi tive and non-movable engagement, and the lockhead follows up the slight forward movement of the outer rim.

The recess 13 for vthe head 11 is of course necessary, since to remove the rim 4 it must be' turned on the other and the lug` 9 must pass over the head .11. ToV manipulate theV lockifrom its seat in the socket,'itr is only necessary to press the pin 10 inwardly', andr while still pressing,tur'n the handle so that the head 11 will be rotated, when itv will at once engage the normal surface of the felly and'will then be in theplane-of the lug,9.

The rim would preferably have anin` wardly projecting iiange 17 alongits outer edge adapted to seat'snugly onthe rim 2, so'v that the spacebetween the two rimsl is entirely enclosed, the iiange 3 being on one side andv the said flange 17 on the other.- This of course prevents dust and dirt from .collect-V ing infsaid space and entering into the luggives. Athe wheel pearance. 1 v

In order to accommodate the valve stem of the tire carried by the rim 1, the rim 2 and felly 1 must of course be provided with a slot 18 of suiiic'ient length to allowl for'the necessary peripheral movement of the rim 4 on the rim 2, the valve being preferably the invention as set forth herein. head 11, the latterbeing forcibly seated positioneddirectly opposite the lock member to present a balanced appearance. i

From the foregoing description, it will be readily seen that we have produced such a device as substantially fulfills the object of lVhile thisspeciiication sets forth in detail the present ,and preferred construction of the device still in practice such deviations `from `such detail may be resorted to as do not form a departure from the spirit of the invention as defined by the appended claims.' Having thus `described our invention what we claim as new and useful and desire-to secureby Letters Patent is: i v- 1. A locking means for demountablerim's including interlocking lugs onV the felly band and demountable rim, an independent lug on the demountable rim,` an eccentric lock-.head turnably mountedin the felly and adapted to be turned :to engage said lug to hold the coacting lugin positive 'engages ment, a fiat spring handle connected to the 2. A locking means for demountable rims including interlocking lugs on the felly band and demountable rim, said lugs being arranged to be contacted with a relative peripheral movement of the rim and felly band, an independent 'lug on the felly-band, an eccentric lock-head arranged to be turned to engage said lug to hold the coacting lugs togethenfandmeans whereby when the lockhead is turned to be disengaged from its lug said headrivillv automatically Vbe moved to liey iiush with the felly bandto allow re# tractive peripheral movement of the rim. Y

3. A locking means for demountable rims including interlocking lugs on the felly bandand d emountable rim, vsaid lugs being arranged toxbe contacted with-a relative peripheralmovementV of tliejfrim and felly band, an independent lug on the felly-band, an eccentric lock-head arranged tobe turned to engage saidk lug to hold'the coacting lugs together, a. stem fixed to the lock-head and `projecting through the felly, the felly band beingprovided with a recessshaped to re-v ceive thel head only Vwhen the latter is turned tures.

LESLIE L. DARROVV, REDERICK W..HOESSEL. 

